Can I Put a Granny Flat on My Property? Everything You Need to Know

19 May 2025

 

. in expanding the liveable space on their block, and granny flats have become a convenient solution. 

Also known as ancillary dwelling units or secondary suites, these self-contained living spaces offer homeowners a range of benefits. 

If you’re wondering whether you can put a granny flat on your property, it is first crucial to understand the regulations and considerations involved. We have heard all your questions and are here to answer them.

What is a Granny Flat?

A granny flat is a self-contained structure typically built on the same property as a single-family home. These units usually include a bedroom, bathroom, kitchen, and living area, providing a separate and private living space. 

Granny flats are a great solution if you want to accommodate your ageing parents, adult children or guests, or simply rent them for additional income.

They can also be used as a home office, separate entertaining area, rumpus room or creative workshop. Granny flats are no longer just for granny.

See more: Addstyle’s Granny Flat project gallery.

Regulations and Zoning Laws

The answer to the question “Can I put a granny flat on my property?” might come down to zoning regulations.

Each Australian state and council has its own rules governing the construction of secondary dwellings. Common restrictions may include:

  • Size limitations dictated by your block’s R-Code
  • Setback requirements from property boundaries
  • Development Approval processes and fees
  • Occupancy restrictions (e.g., owner-occupancy requirements)

Consult with your local council and a professional builder experienced in granny flat construction for help navigating these regulations and ensuring stress-free construction.

Property Suitability

Not all properties are suitable for building a granny flat. Factors to consider when assessing your property include:

  • Available space and lot size
  • Soil condition and stability
  • Accessibility and parking
  • Proximity to utilities (e.g., water, electricity, sewage)
  • Privacy and neighbourhood aesthetics

A professional assessment can help determine if your property meets the requirements for a granny flat.

Read more: Should I Consider Building a Granny Flat?

Cost Considerations

The price of building a granny flat in Australia depends on a range of factors, including:

  • Size and complexity of the granny flat
  • Construction materials and labour
  • Permits and fees
  • Utility connections and upgrades
  • Architectural and design services

Fill in the Budget Indicator Form with your project requirements, and we will contact you within one business day with a price estimate.

Design and Construction

Granny flats are getting more functional and architecturally interesting every year. Working with experienced architects and builders specialised in granny flats will ensure the final result is customised to suit your property, with a design that meets your needs and complies with regulations.

Our granny flat designers will consider aspects like:

  • Architectural style and compatibility with the main house
  • Layout and functionality
  • Energy efficiency and sustainability
  • Accessibility features for elderly or disabled occupants
  • Adaptability for different uses in the future

When designing your granny flat, you don’t need to settle for a boring or ugly structure.

Our expert designers have extensive experience designing and constructing granny flats that seamlessly integrate with existing properties. We use premium materials and craftsmanship to deliver superior results, ensuring your granny flat lasts.

Rental Potential and ROI

Any self-contained dwelling can command competitive rental rates, especially in high-demand locations near universities, hospitals, or city centres.

Building a granny flat can provide a significant return on investment (ROI) through rental income. 

To maximise rental potential and ROI when you put a granny flat on your property:

  • Ensure it is well-designed with a comfortable layout
  • Invest in quality finishes and appliances
  • Set competitive rental rates based on market research
  • Consider hiring a property manager to handle tenant screening and maintenance

A well-managed rental granny flat can generate a steady income stream and increase your property’s overall value.

Benefits of Adding a Granny Flat

Beyond rental potential, granny flats offer numerous benefits, including:

  • Providing a comfortable living space for ageing parents or adult children
  • Creating a separate guest suite for visitors
  • Increasing property value and resale appeal
  • Enabling multi-generational living arrangements
  • Offering flexibility for changing family needs

A granny flat can be a valuable addition to your property, enhancing its functionality and versatility.

Project Highlight: Menora Granny Project

We added a freestanding granny flat that perfectly matches the existing character home for the Menora granny flat project. This charming flat includes two bedrooms, a bathroom, a kitchenette, a meal area, and a living room. 

We ensured the addition beautifully complements its surroundings with timber joinery, gable features, high ceilings, and face brickwork.

So, Can You Put a Granny Flat on Your Property?

Building a granny flat on your property rewards you with extra living space, comfort for relatives, potential rental income, and increased property value. 

However, you must thoroughly research regulations, assess your property’s suitability, and consider the costs and challenges involved.

We can help you understand the entire picture. Our experienced designers will guide you from design to construction, ensuring your granny flat meets your needs and exceeds your expectations.

Contact us today to schedule a complimentary consultation. 

Join our social media communities on Facebook and LinkedIn to stay updated on the latest renovation trends and ideas.

Recent News

Why More Perth Families Are Future-Proofing Their Homes

Why More Perth Families Are Future-Proofing Their Homes

In today’s property landscape, more West Australians are choosing to upgrade rather than uproot. With real estate listings at record lows, stamp duty costs on the rise, and the complexities of relocating increasing, homeowners are embracing a longer-term perspective: future-proofing their homes instead of replacing them.

read more
How Much Does a Second Storey Addition Cost in Perth in 2025?

How Much Does a Second Storey Addition Cost in Perth in 2025?

A second storey addition can be one of the most valuable investments you make in your home – but working out the cost isn’t as simple as a square metre rate. From access and ceiling heights to materials, finishes, and structural choices like aerated concrete flooring, this article breaks down what really influences the cost of building up in Perth in 2025.

read more
Home Renovation Trends for 2025: Colours, Materials & Styles

Home Renovation Trends for 2025: Colours, Materials & Styles

Home renovation trends continue to evolve in 2025, driven by shifting lifestyles, material advancements, and a growing focus on sustainability. Luxury home renovation builders and designers are exploring alternative materials and colour palettes. Here’s what you need...

read more